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hoa [83]
2 years ago
11

I need help with this i cant cuaet understand it well.​

Mathematics
1 answer:
skelet666 [1.2K]2 years ago
7 0

Answer & Step-by-step explanation:

C = 2πr

3) 2π(53) ≈ 197.9

4) 2π(35) ≈ 219.9

5) 2π(21.5) ≈ 135

I'll let you formulate the last one :)

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Math question, please help me :(
olya-2409 [2.1K]
14*6*4 for the sides, don't calculate the bases
6 0
3 years ago
Graph All the plans on the graph provided. Your graph should include talk times between 0 and 200 minutes.
kumpel [21]

I'll do the first five problems to get you started.

==================================================

Problem 1

The graph is shown below in the attached image.

==================================================

Problem 2

The plan chosen was Public Mobile, which offered $24 per month for unlimited minutes. This plan does not depend on the number of minutes, so this is not a direct variation. It's also not a partial variation either since the cost doesn't vary (ie change) at all. The monthly cost is fixed at $24 per month.

Even at 200 minutes, this is the cheapest plan as mentioned in the other chart I posted. You can determine this by plugging x = 200 into each equation described earlier. You should find that Public Mobile still gives the cheapest rate. The graph done in problem 1 visually verifies this. The gray line y = 24 is below each of the other lines when x = 200.

==================================================

Problem 3

The best plan is still Public Mobile when x = 1800 minutes per month.

Any x value such that x > 140 will also have Public Mobile be the best plan.

When we get to x = 140 is when this isn't the best plan and instead Bell is the better plan to go with. Note the purple line y = 0.10x+10 is below the gray line y = 24 for values x < 140. This visually shows us that Bell is cheaper compared to Public Mobile.

==================================================

Problem 4

The plan with the greatest rate of change is Telus. This is because y = 0.35x has the largest slope of 0.35

The rate of change is the charge per minute.

==================================================

Problem 5

If you talked for 200 minutes, then Public Mobile is the best plan. This is because the gray line y = 24 is below any other line when we have x = 200.

4 0
3 years ago
What are equivalent fraction that equal 3/5?
kumpel [21]
\frac{6}{10} ,  \frac{12}{20} ,  \frac{24}{40} ,  \frac{48}{80}

They are all able to be simplified into 3/5. 6/10 by 2/2, 12/20 by 4/4 , 24/40 by 8/8 and 48/80 by 16/16.
8 0
3 years ago
Please help with math question
lozanna [386]
It would be the1st and the 3rd from the top down

6 0
2 years ago
12
a_sh-v [17]

Answer:

x=-2

Step-by-step explanation:

R=3x+2y

y=7, R=8

x=?

Substitute R and y with the values given

8=3x+2(7)

8=3x+14

Combine like terms

8-14=3x

-6=3x

x=-2

6 0
2 years ago
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